Impax Asset Management Group plc

New 13F: Q3 2026

Impax Asset Management Group plc filed its 13F for the quarter ended Sep 30, 2026 on Nov 10, 2026: $4.1B in AI and semiconductor stocks; $192.6M bought and $740.8M sold against its previous quarter, at the quarter's prices.

Impax Asset Management Group plc declares $4.9B in 53 of the 230 AI and semiconductor companies tracked on Silicon Floor, as of Jun 30, 2026 (Form 13F): 31.8% of its $15.4B 13F portfolio. Largest positions: KLA (0.19% of the company) and NVIDIA (0.02% of the company). Over time: $4.9B in 53 of these companies for Q2 2026, against $1.1B in 34 for Q4 2019 (13F values as filed). From Mar 31, 2026 to Jun 30, 2026, it bought $410.0M and sold $1.5B of these stocks, at the quarter's prices: a net sale of $1.1B; 1 new position.

Performance of its AI picks

The AI-stock portfolio Impax Asset Management Group plc declared for Q2 2026 (Form 13F), held unchanged, returned -4.8% in Q3 2026 (SMH -7.1%), ranked 1531 of 1,785 active managers. Over the last 12 months, quarter after quarter: +35.8% (SMH +87.2%), ranked 347 of 1,360 active managers. Over three years, quarter after quarter: +140.3% (SMH +325.8%), ranked 471 of 784 active managers. Over five years, quarter after quarter: +155.5% (SMH +389.8%), ranked 287 of 535 active managers. Trades made during a quarter are not visible in 13F filings: this measures its declared picks, not the return of its funds.

Largest positions

  1. KLA (KLAC): $749.0M, 2.5M shares, 0.19% of the company, 4.9% of its portfolio (trimmed this quarter); held since Q4 2022
  2. NVIDIA (NVDA): $744.9M, 3.7M shares, 0.02% of the company, 4.8% of its portfolio (added this quarter); held since Q1 2021
  3. Microsoft (MSFT): $503.8M, 1.4M shares, 0.02% of the company, 3.3% of its portfolio (added this quarter); held since Q4 2019 or earlier
  4. Hubbell (HUBB): $254.7M, 486,855 shares, 0.92% of the company, 1.7% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  5. Vertiv (VRT): $244.3M, 729,503 shares, 0.19% of the company, 1.6% of its portfolio (trimmed this quarter); held since Q1 2020
  6. Amphenol (APH): $210.8M, 2.4M shares, 0.10% of the company, 1.4% of its portfolio (added this quarter); held since Q1 2025
  7. Marvell (MRVL): $196.7M, 660,285 shares, 0.08% of the company, 1.3% of its portfolio (trimmed this quarter); held since Q2 2023
  8. Applied Materials (AMAT): $175.6M, 242,832 shares, 0.03% of the company, 1.1% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  9. Cadence (CDNS): $160.1M, 426,623 shares, 0.16% of the company, 1.0% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  10. TE Connectivity (TEL): $153.8M, 762,712 shares, 0.27% of the company, 1.0% of its portfolio (added this quarter); held since Q4 2019 or earlier
  11. Synopsys (SNPS): $148.5M, 332,929 shares, 0.17% of the company, 0.97% of its portfolio (added this quarter); held since Q2 2024
  12. Apple (AAPL): $105.0M, 363,014 shares, 0.00% of the company, 0.68% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  13. NextEra Energy (NEE): $103.2M, 1.2M shares, 0.06% of the company, 0.67% of its portfolio (added this quarter); held since Q3 2024
  14. Trane (TT): $99.2M, 202,048 shares, 0.09% of the company, 0.65% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
  15. Autodesk (ADSK): $97.3M, 500,719 shares, 0.24% of the company, 0.63% of its portfolio (added this quarter); held since Q4 2019 or earlier

By sector

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